Rewrite the expression by combining like terms.
3x^2 + y + 2y^2 + 4y^2

3x^2 + 7y^2

Step-by-step explanation:

3x^2 + y + 2y^2 + 4y^2 = 3x^2 + 7y^2

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation:

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .